A university in Hong Kong has urged all departments to stop traditional roast pig cutting ceremonies at special events after criticism its new vet centre killed animals before it had treated any.The move by City University followed an incident that an outspoken animal welfare activist called a public relations blunder.The university’s new Veterinary Medical Centre in Sham Shui Po cut up and served two roast pigs at an opening ceremony on March 27. The event was then posted on CityU’s Facebook…